CD4099BK

Latches Overview

The CD4099BK is a CMOS D-type addressable latch manufactured by Harris Corporation. It features an 8-bit architecture with a 1:8 demultiplexer followed by latches, housed in a 16-lead Ceramic Flat Pack (CFP) package. The device operates on a supply voltage range of 3V to 18V and supports an operating temperature range from -55°C to 125°C. Key electrical characteristics include a propagation delay of 50ns and output currents of 6.8mA. It is part of the 4000/14000/40000 series logic family.

Latches Feature Summary

• Integrates a 1:8 demultiplexer directly followed by latching circuitry for addressable data storage
• Features low-level triggered operation with true output polarity
• Includes specific reset logic that activates only when the latch enable signal is high
• Constructed using metal-sealed ceramic packaging for robust environmental protection

Latches Applications

• Addressable data storage systems requiring direct demux-to-latch integration
• Industrial control interfaces operating within extended temperature ranges
• CMOS logic circuits utilizing the 4000 series standard
• Military or aerospace applications requiring hermetic ceramic packaging

Latches Procurement Notes

Verify the component is the Harris Corporation CD4099BK variant, as other manufacturers may produce similar CD4099 devices with different specifications. Confirm the package type is the 16-CFP ceramic flat pack, distinct from plastic DIP or SOIC variants. Check RoHS compliance status, as this specific part is noted as non-compliant. Ensure the supply voltage and temperature ratings match your system requirements before procurement.

Latches Selection Notes

Select this component when a combined demultiplexer and latch function is required in a single IC to reduce board space. The ceramic CFP package is essential for applications demanding high reliability and moisture resistance. Consider the 50ns propagation delay and 6.8mA output drive capability against your circuit's timing and load requirements. Verify compatibility with the 3V to 18V supply range and -55°C to 125°C operating environment.

Latches Part Context

The CD4099BK belongs to the Harris Corporation 4000/14000/40000 series of CMOS logic devices. This series is known for wide voltage operation and compatibility with TTL logic levels. The CD4099 specifically addresses the need for addressable latching in complex digital systems, combining decoding and storage functions. Harris Corporation was a prominent manufacturer of such logic components before industry consolidations.

Latches Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should verify pinout and electrical compatibility if considering generic CD4099 equivalents from other manufacturers.